Type-writing and computing machine.



J. H. BARR. TYPE WRITING AND CUMPUUNG MACHINE.

APPLICATION FILED 0CT.23. I9I4.

Patented July 10, 1917.

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" HISATTURNEY I. H. BARR.

TYPE WRITING AND COMPUTING MACHINE.

, APPLICATION FILED OCT. 23. |914. 1,282,755. Patented Ju1y10,1917.

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WITNEEEEE: INVENTUR W7/za@ /QUHJW WSATTDRNEY J. H. BARR.

TYPE WRITING AND COMPUTING MACHINE.

APPucATloN FILED 06h23. |914.

1,232,755. Patented July 10, 1917.

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w. I Wn @ju/Jamba I-IISATTURNEY UNITED STATES PATENT OFFICE.

JOHN H. BARR, 0F NEW YORK, N. Y., ASSIGNOR TO REMINGTON TYPEWRITER COM- PANY, OF ILION, NEW YORK, A CORPORATION' 0F NEW YORK.

Specification of Letters Patent.

Patented July 10, 191'7.

Application iled October 23, 1914. Serial No. 868,200.

To all l107mm t may concern Be it known that I, JOHN H. BARR, citi zen of the United States, and resident` of the borough of Manhattan, city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Type-VVriting and Computing Machines, of which the following is a specification.

My invention relates to typewriting and computing machines, and more particularly to the connections between the typewriting and the computing mechanisms.

My invention has for its principal object to provide improved connect and disconnect mechanism for the computing mechanism. I have provided means whereby the computing mechanism can be maintained normally inoperative, so that normally numbers can be written without operating the principal parts of said computing mechanism. I have also provided means for connecting up the computing mechanism or bringing it automatically into operation when a number is written in a computing column. I have also provided means for throwing the automatic disconnecting means out of operation so that the machine is normally connected up for operation. The machine is also pro vided with a disconnect device whereby it can be thrown out of operation entirely, not withstanding the devices which otherwise would throw the computing mechanism into operation at certain times.

Another purpose of the invention is to accomplish the automatic connection and dlsconnection of the computing mechanism without putting undue resistance on the carriage or other parts of the machine.

To the above and other ends my invention consists in certain features of construction and combinations and arrangements of parts all of which will be fully set forth herein and particularly pointed out in the claims.

One embodiment of my invention is illustrated in the accompanying drawings in which Figure 1 is a side elevation partly in section of so much of a Remington-'Wahl typewriting and computing machine as is necessary to illustrate the embodiment of my invention therein.

Fig. 2 is a front elevation of the same, partly in section.

F 1g. is an enlarged fore and aft vertical sectlon through the actuator of the Wahl addlng machine mechanism about on the ufi .a2- of Fig. 2 and looking toward the Fig. 4 is a fragmentary view of certain p arts of the mechanism as seen in lett-hand slde elevation.

Fig. 5 is a similar View but including more of the mechanism and with the parts in diiferent positions. n In Figs. 1, 2 and 3 the parts are shown 1n normal position and so set that the adding mechanism is normally disconnected but will be automatically connected up when the typewriter carriage is brought by an operation of the tabulator mechanism into a computing zone.

In Fig. 5 the machine has the same setting,r but the parts are shown in the position they occupy when a tabulator key is operated and has by its operation brought the carriage into a computing zone.

In Fig. 4 the parts are shown in the position they occupy when the disconnect mechanism is thrown out of operation so that the machine is normally connected up for actuation by the numeral keys.

The Remington No. 1l typewriter shown in the drawings, has a stationary frame comprising a base part l, corner posts 2, 'and a top plate 3, across which a carriage 4 is adapted to travel on roller bearings 5, said carriage having mounted therein a platen 6. The carriage is drawn across the machine by means of a spring drum 7 and its action'is normally controlled by an escapement comprising a ,dog rocker 8 and escapement `wheels 10 mounted on the rear endof a shaft on whose forward end there is a .feed pinion 11, meshing with a feed rack 12, which rack is pivoted at 13 to the carriage 4.

Denominational tabulator mechanism is also provided to control the carriage on occasion and said mechanism comprises the usual columnlstop' lbar 14 mounted on the carriage by arms 15 and having one or more column stops 16 so arranged thereon that one of said stops can. be rendered operative by adjustment at anydesired letter space position along the bar t4. These column stops cooperate with a. series of denominational key operated stops 1T which are pi\' oted at 18 in a frame 2() suitably secured to the main frame of the machine. The column stops i7 are in the form of levers of the {i1-st order, each of which at its lower end is operated by a push wire 21 which on its forward end carries a tabulator key 2Q. All the wires or bars 21 pass near their forward ends looselythrough a. guide 23 and each of them has a restoring spring 24. Each of the bars 21 also has a lug or collar 25 secured thereto, all of said lugs being disposed in a straight row across the machine immediat-ely in front of a slotted universal bar 26 which is pivoted by arms 27 and hubs 28 on a transverse rod or shaft 3() mounted at its ends in the base 1 of the machine. Each of the arms Q7 is connected by a link 31 with an arm 32 depending from a rock shaft 33 in the rear part of the base of the machine, and said rock shaft 33 also has mounted thereon another arm 34 which is connected by a link 35 with a release lever 36 suitably pivoted on the top plate 3 and having its forward end lying beneath the feed rack 12. rl`he construction is such that whenever one of the keys 22 is pushed toward the rear of the machine the upper end of the corresponding stop lever 17 moves forward into .the path of the column stops 16 and the lever 36 is rocked about its pivot to lift the rack 12 out of engagement with the pinion 11.

The printing instrumentalities of the typewriter include a. series of front-strike type ba rs 37 pivoted on a segment 38. These type hars are operated by printing keys 40 through vert-ical links 41.l sub-levers 42 and horizontal links 43.

There is another segment at the forward ends of the type bars which carries a pad 44 on which the free ends of the type bars rest and which also carries the hangers 45 of the sub-levers 4Q; but this forward segment has been broken away in order to show more plainly the mechanism with which we. are more immediately concerned.

The lVahl computing mechanism includes an actuator 4G, the main frame or support of which consists of a casting 47 which is secured by screws to brackets 48 rigidly mounted on the top plate 3. Said machine also includes a carriage having the form of a bar 50 which is mounted on the frame 47 by means of certain guiding and supporting rollers 51 and which at its ends is also connected with the typewriter carriage by means of arms 52 extending to the right and left from the bar 50 and each connected by means of a screw 53 and slot 54 with an arm 55, said arms 55 being fastened by screws 56 to the typewriter carriage 4. Any desired number of totalizers or adding heads 57 can be mounted on this carriage bar 50,

the mounting shown and that ordinarily used consisting of a sort of dove-tail arrangement which allows the adding head to be adjusted lengthwise of the carriage and secured in adjusted position by means of a latch engaging any one of a series of notches 58. In the present instance I have shown only one adding head 57 but the operation would be the same if there were a larger number. It will, of course, be understood that when it is desired to locate an adding column at any desired point on the paper that a totalizer 57 will be set in the correspondinor position and a column stop 16 will also Se set to correspond with the position of said totalizer.

In order to understand fully the application of my invention to the Wahl adding machine it is necessary to describe briefly some of the mechanism of the actuator 46 and this will be understood more especially by reference to Fig. 3. Said actuator contains at the front thereof a transverse hori- Zontal rock shaft 60 which extends the entire length of the actuator and has rigidly lnounted thereon a series of nine arms 6l, one for each of the numeral keys 40 of the typewriter. These arms are arranged at different angles on the shaft so as, by means of certain slotted cam arms, to be operated different distances corresponding with the values of the different numerals. This rock shaft and these arms have been omitted from Fig. 2 and the arms have been omitted from Fig. 1 to avoid complicating the drawings. Said slotted cam arms are similar to the cam arms 96 shown in the patent to `Wahl No. 893,719, dated July 21, 1908. The rock shaft 60 carries a segmental rack G3 which engages at the proper time with a pinion 64, Fig. 2, which pinion is mounted on the same shaft as the master wheel 65.

The numeral keys 40 are connected by means of links ('56 with oscillatory devices G7, each of which is arranged to operate one of the slotted cam arms above mentioned but with lost motion connection between said cam arms and the devices 67 as is well understood. Each of the devices G7 has a segmental part 68 adapted for cooperation with a universal bar 70, which universal bar is mounted by means of a series of arms 71 on a rock shaft 72.

Certain devices not herein shown hold this universal bar normally in the position shown 'r in full lines in Fig. 3, the construction bein such that when a numeral key is depressed said universal bar is swung forward to the position indicated by dotted lines at 70aL after which the concentric part of the segment G8 slides along in conta-ct with the universal bar during the time when the arm 61l is being operated by the cam arm. At the end of the down stroke of the lrey the universal bar drops in behind the segment 68 'JIJ and on the up stroke of the key said universal bar is lifted to the position indicated by dotted lines at The segment 63 is nor mally out of' position to engage the pinion 64 and it is moved into position to engage said pinion by means operated on the forward stroke of the universal bar; and various other devices are operated by the universal bar 011 its forward stroke. The machine can be thrown out of operation so that the master Wheel will not be turned by the keys, by moving the universal bar to the position 70 and holding it there and in the Wahl machine as ordinarily manufactured there is a disconnect handle 73 having a cam arm which, when said handle is pulled forward and downward, moves the universal bar to this inoperative position 7 O" and maintains it there. If now a key be de pressed the parts (S7, 61 will be operated but these will be idle operations and the master wheel will not be turned. As these parts are freely pivoted the resistance of said parts to the key stroke is very slight and the extra load on the keys due to the adding mechanisrn is largely removed. Moreover, the wea r on the more delicate parts of the mechanism is avoided and in case a register happens to be in mesh with the master wheel no additiolrwill take place when the handle 73 is in itsdisconnect position. The disconnect handle 73 is operatively mounted on a bracket 74 which is secured by means of screws 75 to the front face of the main frame bar 47 of the actuator.

The rock shaft 60 yhas rigidly mounted thereon au arm 76 on which there is a lug 77 adapted to engage the lower part of the bracket 74 to arrest the return motion of the shaft 60. This arm 7 (i is also formed with a shoulder 78 adapted to be engaged by a detent 80 pivoted at 81 to the bracket 74e. rlhis detent is controlled by a spring 82 connected at one end with said detent and at the other end with the arm 7 G so that said spring also serves to restore the said arm and the shaft 60 to their normal positions and the detent locks said parts in their normal positions.

In order to release the detent 80 when a numeral key is depressed said detent is formed with a tail or arm 83 which lies in the path of the forward motion of the universal bar 70 so that said detent is tripped by said universal bar in the early part of the down stroke of the key.

As the universal bar is thrown out of operation when the machine is disconnected, means are provided for throwing the detent 80 also out ofoperation at .this time, as otherwise the numeral keys would be locked and could not be used for writing dates and other numerals not intended to be added. To this end said detent is formed with a finger 84 and a pin 85. projecting from the handle 73 through a slot 86 in the bracket 71, is adapted when said handle 73 is moved to its discol'mect positionto move the detent 80 out of engagement with the shoulder 78 and to maintain it out of such engagement.

The actuator also contains a key arrester 87, full stroke devices 8S, a change gear mechanism for subtraction and a number of other devices.

The mechanism thus far described is old and weltknown in the art and as far as my invention is concerned, it can be modified in any suitable way.

Another means shown in the drawings for operating the release mechanism can be described as follows1-An oscillatory device or lever 90 is pivoted on a rod 91 on which are also pivoted the segments G7 and the cam arms. The lever 90 can be rocked toward the rear of the machine by a. downward motion of a link 92 which is pivoted at 93 to a plate 94 rigidly secured to the side of the lever 90 by means of a screw 95. By the means described the link 92 is in effect pivoted to the lever 90, the plate 94 making provision for suitable adjustment. The lever 90 has a nose 9G lying beneath one of the arms 71 on which the universal bar 70 is mounted The arrangement is such that if the link 92 be pulled downward from the position shown in l? ig. 3 the nose 9G will raise the universal bar 70 to its disconnect position 7 0. In order at this time to release the latch S0 the lever 90 has a. headed pin 97 projecting therefrom into a keyhole slot 98 formed in the lower end of a lever 100 which at its upper end is pivoted at 101 to a post 102 projecting from the main frame piece -l-7 of the actuator. A hook 103 is pivoted to said lever at 10-'1- and extends forward through holes in the .frame piece 47 and the bracket 74. the forward end of the hook being guided bv pin and slot connection 105 with the said bracket 74. The hook 103 is in position to engage the finger 84 in such wise that when the link 92 is pulled downward said hook will release the detent 80.

`l connect the link 92 at its lower end with an arm 106, the hub 107 of which is rigidly mounted on a transverse rock shaft 108 which at its ends is pivoted in the two front posts Q of the typewriter frame. This rock shaft is controlled by a spring 110 coiled around the shaft and connected at operated. To this end an arm 113 is rigidly secured to the hub 28 of the universal bar 26, said arm 113 projecting upward and having a headed pin 114 at its upper end. Said pin engages in a slot 115 in a link 116, which link at its forward end at 117 (Fig. 4) is pivoted to an arm 118 projecting downward from the hub 107, which hub, it will be recalled, is rigid on the shaft 108. The construction is such that when the tabulator ke is pushed in as shown in Fig. 5, the sha t 108 is rocked and the link 92 is moved upward, allowing the parts of the computing mechanism to drop down to the operative position shown in Fig. 3. As here shown the link 116 is made in two parts connected together by screw and slot conntion 119 in order to adjust the length of the link. The slot 115 enables the shaft 108 to be rocked by other means without disturbing the arm 113 and shaft 30 as will appear hereinafter. I provide means whereby if the tabulator is operated for some other reason than to bring an adding head into adding position, the shaft 108 will be immediately rocked by its spring 110 when the key 22 is released and the parts will be immediately disconnected; but if an adding head moves into adding position when the tabulator key is operated, said adding head will cause the shaft 108 and the parts connected therewith to ne held in the position shown in Fig. 5 where the adding machine is connected up for operation. Tothis end a latch 120 is mounted on a hub or sleeve 121 (F ig. 2) which sleeve is pivoted on a long pivot screw 122 threaded into the right-hand post 2. The sleeve 121 has projecting rearward therefrom an arm 123 to which is connected a spring 124 which tends to move the latch 120 downward to its inoperative position shown in Fig. 1. The latch 120 coperates with a pin 125 projecting from an arm 126 (Figs' 2 and 5), which arm has its hub 127 rigidly secured tothe shaft 108 by a set screw 128. The construction is such that if, when a tabulator key is operated as shown in Fig. 5, the latch 120 be raised as shown in said figure, it will by engagement with the pin 125 hold the shaft 108 in its operated position and retain the computing mechanism in operative condition.

The detent 120 is controlled by the ca-rriage acting, in the present instance, through the totalizer 57 by means which includes an upright link 130 pivoted to the free end of said detent and at its upper end pivoted to an arm 131 projecting toward the rear from a rock shaft 132, which rock shaft is journaled in brackets 133 projecting from the actuator 46. The shaft 132 has its inner end approximately in the same fore-and-aft vertical plane as the master wheel 65 and at its said inner end said shaft has a forwardly projecting arm 134 which is arranged to be depressed whenever a totalizer 57 is in mesh with the master wheel, the depression of said arm raising the arm 131 and link 130 and raising the latch 120 into its operative position shown in Fig. 5. In the present instance the arm 134 is controlled by a vertical slide 135, which slide, as shown in Fig. 1, is of a two-armed or U- shaped construction having a bent-off part of the arm 134 extending between its two branches and pivoted thereto on a pin or screw 136. At it-s upper end the slide 135 has a wheel or roller 137 mounted between its two branches and journaled on a pivot screw 138. This wheel or roller 137 stands in such position that when a totalizer 57 comes into position to be o erated by the master wheel it displaces sald roller downward and holds it down as long as the totalizer is over the master wheel. This downward motion is eifecd against the tension of the spring 124 and as soon as the totalizer moves off of the roller 137 said spring pulls the latch 120 downward, releasing the rock shaft 108 which, rocked by its spring 110, immediately disconnects the computing mechanism.

The slide 135 can be mounted in any suitable way but, as here shown, it is mounted in a guide-way 140 consisting of a piece of sheet metal suitably cut out and secured to the actuator 46 and having ears 141 bent around the inner branch of the slide 135. The construction is such as to leave said slide free to move up and down but to restrain it against motion in any other direction.

Means are provided to throw the disconnecting mechanism out of operation leaving the adding mechanism normally connected up. This mea`ns can have any one of a variety of forms but in the present instance it consists of means for moving the shaft 108 to position to connect up the mechanism and a detent for holding said shaft in that position. This means consists of a cam or lever 142 which is pivoted on a pivot screw 143 threaded into a post 144 projecting inward from the right-hand post 2 of the typewriter. This lever is controlled by a friction washer 145 pressed against the lever 142 by the screw 143 and leaving said lever free to be moved by the exertion of a little force but retaining it against the accidental displacement in either of its two positions, one of which positions is shown in Fig. 5 and the other in Fig. 4. The lever 142 has a forwardly directed arm of the elbow-shape shown and having one end 146 thereof constituting an eccentric cam for eoperation with a pin 147 mounted on an arm 148 projecting upward from the rock shaft 108 and, as shown in the present instance, integral with the arm 126. The lever 142 is formed at its forward end into a handle or key 150 and it also has an arm 151 arranged, when the handle 150 is raised, to strike against the hub 127 of the arm 126 (Fig. 2) and prevent excessive motion of the lever. When the handle 150 is raised as shown in Fig. 5 this device 142 is out of operation but when said handle is pushed down to the position shown in Fig. 4 the cam surface 146, acting on the pin 147, pushes said pin toward the rear, rocking the 'shaft 10S against the tension of the sprin 110 to that position in which the computing mechanism is connected up for operation. The lever 142 is formed at the end of the cam edge 146 with a notch 4152 with which the pin 147 engages when the handle 150 is depressed as shown in Fig. 4 and which acts as a detent to hold the mechanism connected up indefinitely. When the parts are in this position shown in Fig. 4 the computing mechanism is normally connected up for operation. As has been above mentioned this action is permitted by the slot 115 without disturbing the universal bar of the tabulator mechanism. When the parts are in this Fig. 4 position the computing mechanism can at any time be disconnected either by raising the handle 150 or by a suitable operation of the ordinary disconnect handle 73. In short, when the handle 150 is depressed as shown in Fio. 4 the machine is in the condition inwhic i the Wahl adding machine would be without my improvements added thereto; that is to say, the machine is normally connected up for operation except when disconnected by the handle 73.

By causing the automatic connection of the adding mechanism to be eli'ected not by the travel of the carriage as has been proposed heretofore but by the tabulator keys, an undue amount of resistance to the carriage travel is avoided, the work being thrown onto the tabulator keys where there is power to spare. Moreover, the mere fact that the typewriter carriage is in such position that a totalizer is over the master wheel does not of itself connect up the adding machine for operation. For example, in the writing of bills it might happen that dates, street addresses or other matter including numbers would need to be written at the head of a bill and in the same letter-space positions as are occupied farther down the page by an adding column. If the machine were normally in operative condition or if it were thrown into operation by the mere passage of the adding head across the master wheel then these numbers would be added on to the adding head, which would result in inconvenience and possible errors. By my mechanism the adding mechanism is not connected up except when the carriage moves into an adding column for the purpose of performing addition. Vhenever the carriage is to be moved into an adding column for that purpose it is invariably done by the use of the tabulator with the result that the mechanism becomes connected up and rendered operative to register the written numbers.

It may sometimes happen that the typewriter and adder carriages have been brought into an adding zone by some other means than by the use of the tabulator, and that it is nevertheless desired to register a number at that time. The computing mechanism would not then be connected vup for operation, but the roller 137 would be held down by the totalizer 57 with the resnltthat the latch 120 would be held up in its operative position. Under these circumstances the machine can be connected up for addition either by an operation of one of the tabulator keys 22 or by moving the handle 150 down and up again. In this event the handle 150 or key 22 would have. to be pressed a little harder than usual, because the pin 125 would have to spring the latch 120 downward in order to get into engagement with the shoulder thereof. ThereL is enough flexibility, elasticity and looseness in the parts to enable this operation to he readily done.

Various changes can be made in the details of construction and arrangement without departing from my invention.

What I claim as new and desire toV secure by Letters Patent, is

1. In a combined typewriting and comuting machine, the combination of numeral reys, a step-by-step moving device which by its motion determines the denominations in which digits are registered, connect and disconnect mechanism normally tending to move to disconnecting position, means which when operated by hand moves said mechanism to connecting position, and whereby said step-by-step moving device holds said connect and disconnect mechanism in such osition during the registration of a numer and then releases it.

2. In a combined typewriting and computing machine, the combination of numeral keys, a step-by-step moving device which by its motion determines the denominations in which digits are registered, connect and disconnect mechanism normally tending to move to disconnecting position, means operated by hand to move said mechanism to connecting position, a detcnt capaby its motion determines the denominations in which digits are registered, connect and disconnect mechanism normally tending to move to disconnecting position, a tabulator, means operated by said tabulator for moving said mechanism to connecting position, and means whereby said step-by-step moving meansholds said connect and disconnect mechanism in connecting position during the registration of a number and then releases it.

4. In a combined typewriting and computing machine, the combination of typewritin mechanism, computing mechanism including as parts thereof an actuator and a totalizer, one of said arts having a traveling motion with relation to the other, connect and disconnect mechanism normally tending to move to disconnecting position, hand operated means for moving said mechanism to position where said computing mechanism is connected up for operation, and means whereby said traveling part holds said mechanism in connecting position during the registration of a number and then releases it.

5. In av combined typewriting and computing machine, the combination with typewriting mechanism, of computing mechanism including a `traveling totalizer, connect and disconnectmechanism for said computing mechanism, said connect and disconnect mechanism tending to move to disconnect position, hand operated means for moving said mechanism to position where said computing mechanism is connected u) for o eration, and means whereby sai traveling totalizer maintains said connect and disconnect mechanism in connecting position during the time when said totalizer is traveling through a computing zone and then releases it.

6. In a combined typewriting and computing machine, the combination with typewriting mechanism, of computing mechanism including a traveling totalizer, connect and disconnect mechanism for said computing mechanism, hand operated means for moving said connect and disconnect mechanism to position where said computing mechanism is connected up for operation, a displaceable device across which said totalizer travels when in a computing zone, and means controlled by said displaceable device for holding said connect and disconnect mechanism in its connecting position.

7. In a combined typewriting and computing machine, the combination with typewriting mechanism, of computing mechanism including a traveling totalizer, devices for connecting said computing mechanism up for operation but tending to move to disconnect position, a tabulator, means operated by said tabulator for moving said devices to operative position, and means whereby said traveling totalizer maintains said devices in operative position during the time when said totalizer is traveling through a computing zene and then releases said devices.

8. In a combined typewriting and coniputing machine, the combination with type- Writing mechanism, computing mechanism, and a tabulator, of means for connecting said computing mechanism up for operation but tending to move to disconnect position, means operated by said tabulator for moving said connections to connecting position, means whereby said computing mechanism is held in connecting position during the registration of a number and is then released, and hand operated. means for maintaining said connections normally in connecting position.

9. In a combined typewriting and computing machine, the combination with typewriting mechanism, tabulating mechanism, and computing mechanism, of means for connecting said computing mechanism up for operation but said means tending to move to disconnect position, an automatically operating detent for said connecting devices, and a hand operated detent for said connecting devices.

10. In a combined typewriting and computing machine, the combination with typewriting mechanism and computing mechanism, of disconnectible means for connecting up said computing mechanism for operation, hand operated means for moving said connecting means to connecting position, means for automatically maintaining said connecting means in connecting position during a predetermined part of the travel of the typewriter carriage and for then releasing said means, and hand operated means for maintaining, if desired, said connections in connecting position indeinitely.

11,. In a combined typewriting and computing machine, the combination with typeivi'iting mechanism, computing mechanism, and a tabulator, of means operated by said tabulator for connecting said computing mechanism up for operation, a detent for holding said means in connecting position, and means whereby said detent is controlled by the typewriter carriage.

1:2. In a combined typewriting and computing machine, the combination with typewriting mechanism, a tabulator and computing mechanism, of means operated by said tabulatoi for connecting said computing mechanism up for operation, a detent normally in released position but capable of holding said connecting means in connecting position, and means for moving said detent to holding position and maintaining it in that position during a predetermined p ortion of the travel of the typewriter carriage.

13. In a combined typewriting and computing machine, the combination with the printing instrumentalities and the carriage of a typewriter, of computing mechanism including two parts having a relative travcling motion, a device that is displaced by that portion of such traveling motion which defines a coliiputing zone, a detent controlled by said device, and means operated by power other than that due to such traveling motion and controlled by said detent for con necting said computing mechanism up for operation.

14. The combination of typewriting and computing mechanism including denomination selecting means, numeral keys, connections from said numeral keys to said computing mechanism, spring operated means for rendering said computing mechanism inoperative, means for rendering said mechanism operative, a detent for holding said mechanism in operative condition, and means whereby said detent is controlled by said computing mechanism.

15. The combination of a traveling register, an actuator, numeal keys, means normally tending to render said actuator inoperative by said numeral keys, hand operated means for rendering said actuator operative, and register controlled means for retaining said'hand operated means in operative position` 16. In a combined typewriting and coniputing machine, the combination with typewriting mechanism and computing mechanism,'of a disconnect device, a spring for operating said disconnect device, a. typewriter tabulator having means to connect said device against the tension of said spring, means for retaining said device in connecting position during the registration of a number and for then releasing said device to be disconnected by said spring, and a key for operating said disconnect device against the tension of'said spring and for retaining it indefinitely.

17. In a combined typewriting and computing 1nachine.,thc combination of typewriting mechanism, computing mechanism, connect and disconnectdevices for said computing mechanism, means for moving said connect and disconnect devices to connecting position and retaining them in that position indefinitely, a second means for moving said connect and disconnect devices to connecting position, and means for automatically restoring said devices to disconnect position when connected up by said second means.

1S. In a combined typewriting and computing machine, the combination with the carriage and the printing instrlunentalities of the typewriter and with computing mechanism, of a denominational tabulator comprising aseries of denominational keys and stops operated thereby, a universal bar for said keys, and means operated by said universal bar for connecting-'up the computing mechanism for operation.

19. In a combined typewriting and computing machine, the combination of typewriting mechanism, computing ,meehanism, connect and disconnect devices for said computing mechanism, two detents for said connect and disconnect devices, one of said detents being operated by hand and when operated maintaining said devices indefinitely in connecting position, and means for automatically releasing the other detent after the registration of a number.

20. In a combined typewriting and computing machine, the `combination with keys, printing means and a register capable of being operatively connected with and disconnected from said keys, of the spring 110, means operated by said ring for disconnecting said keys from said register, means for connecting up said disconnecting means against the tension of said spring, and a detent.

21. In a combined typewriting and computing machine, the combination with keys, printing means and a register capable of being operatively connected with and disconnected from said keys, of the spring 110, means operatedl by said4 spring for disconnecting said keys from said register, means for connecting up said disconnecting means against the tension of said spring, a. detent, and means for automatically releasing said detent.4

The combination of thel spring 110, disconnecting means operated by said spring, means for moving said disconnecting means to connecting position against the tension of said spring, a detent, means for automatically releasing said detent, and a second detent movable to and from holding position by hand.

23. In a combined typewriting and computing machine, the combination with ty ewriting mechanism, of computingmec anism including as parts thereof an actuator and a totalizer, one of said parts having a traveling motion with relation to the other, a device displaced by said totalizer when in a computing zone, connect and disconnect mechanism for said actuator, hand operated means for moving said connect and disconnect mechanism to connecting position, said means being capable of operation both when said displaceable device is in normal position and when it is in displaced position, and means controlled by said displaceable device when in its displaced position for holding said connect and disconnect mechanism in its connecting position.

24. In a combined typewriting and computing machine, the combination of numeral keys; registering mechanism; a step-by-step moving device which by its motion determines the denominations in which digits are registered; connect and disconnect mechanism which when in one position causes said registering mechanism to be connected up for operation in accordance with the operation of said numeral keys, and in another position causes said registering mechanism to be disconnected, said con nect and disconnect mechanism normally tending to move to disconnecting position; means independent of said step-by-step moving device which when operated by hand moves said connect and disconnect mechanism to position to connect said registering mechanism or operation; and means whereby said step by-step moving device holds said connect and disconnect mechanism in connecting position during the registration of a number.

25. In a combined typewriting and computing machine, the combination of a car riage, numeral keys, registering mechanism, hand operated means for connecting the registering mechanism to be operated under the control of the keys, said hand operated means capable of operation to connect up the register while the carriage is at rest, and means controlled by the movement of the carriage for restoring said hand operated means to disconnecting position.

26. In a combined typewriting and computing machine, the combination of a carriage, a register, numeral keys, mechanism for connecting and disconnecting said register so as to be operative by said keys, said mechanism being normally in disconnecting position, a fin er key operative to move said connect and isconnect mechanism to connecting position and then return to normal position automatically independent of said mechanism, and means for automatically disconnecting the connect and disconnect mechanism after the registration o the number to be re 'stered.

Signed at the orough of Manhattan, city of New York, in the county of New York, and State of New York, this 22nd day of October, A. D. 1914.

JOHN H. BARR.

Witnesses:

CHARLES E. SMITH, FRED J. MlLLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Tatents.

` Washington, D. C. 

